Báo cáo hóa học: "Research Article An Energy-Efficient Link Layer Protocol for Reliable Transmission over Wireless Networks" pdf

... Energy-Efficient Link Layer Protocol for Reliable Transmission over Wireless Networks Adnan Iqbal and Syed Ali Khayam School of Electrical Engineering and Computer Sciences, National University of Sciences and ... 3 for 802.15.4 residual channels [19]andK = 10 for 802.11 residual channels [21], and we perform all our analysis for a parameterized value of K so that the a...

Ngày tải lên: 21/06/2014, 22:20

... get explicit formulas for PDAC problem. The proposed formulas deliver high-performance computing of network resources assignment under PDAC requirements. Thus, an efficient method for proportional ... Bertsekas and R. Gallager, Data Networks, Prentice Hall, Englewood Cliffs, NJ, USA, 2nd edition, 1992. [6] A. Harrel, “Sharp bounds and simple approximations for the Erlang delay and loss f...

Ngày tải lên: 21/06/2014, 05:20

... {s ( t ) }=a ( t ) e jφ(t) , (1) where H {s(t)} is the Hilbert transformation of s(t), a(t)is the signal instantaneous amplitude, and φ(t) is the signal instantaneous phase. The instantaneous frequency (IF) describes the ... estimate for each time instant. The method results in enhanced components IF estimation accuracy in terms of both mean absolute error (MAE) and mean squared error (MSE)...

Ngày tải lên: 21/06/2014, 07:20

... and instantaneously decodable for all the three receivers. On the other hand, one can verify that if we adopt a minimum coding strategy andsendpacketm 3 in the third transmission round, we can ... yet. A scheme is called instantaneously decodable if all transmissions have this property for all receivers. Definition 2. At the end of transmission round  in an instantaneously decodable...

Ngày tải lên: 21/06/2014, 18:20

... good switching reduction if the transferred data are random and evenly distributed over the whole data range. For the wide data bus without evenly distributed random data, the same authors proposed ... be bit-inverted, if their Hamming distances are larger than w/2, the half of word width. The associated Hamming distances will be changed accordingly. For example, for a word, s i , ass...

Ngày tải lên: 21/06/2014, 20:20

... weight for error compensation, and ξ h and ξ l are the thresholds for EURASIP Journal on Advances in Signal Processing 7 removal method demonstrates a significant improvement in performance over ... recognition,” IEEE Transactions on Systems, Man and Cybernetics Part C, vol. 38, no. 2, pp. 145–155, 2008. [4] X. Zhou and B. Bhanu, “Integrating face and gait for human recognition at a di...

Ngày tải lên: 21/06/2014, 20:20

... r1/r β  π α , and g 2 t, r1/r α , for t, r ∈ 0, 1×0, ∞, and h 1 t, rh 2 t, rr 2 , for t, r ∈ 0, 1 ×0, ∞.NoticethatG1, H1, and H2 are satisfied. For all r 2 >r 1 > ... Problems Volume 2009, Article ID 103867, 34 pages doi:10.1155/2009/103867 Research Article An Approximation Approach to Eigenvalue Intervals for Singular Boundary Value Problems w...

Ngày tải lên: 21/06/2014, 20:20

... of σ 2 Δt and Δt max in random networks as functions of n and η in Figures 8 and 9.Foragivenvalueofn and η, the presented asymptotic values were averaged over 1000 realizations of the random network, ... performance bounds as those presented in this paper for the Gaussian assumption. For this reason, we constrain our discussion here to the more common Gaussian delay model.) 2.1.1. Physi...

Ngày tải lên: 21/06/2014, 20:20

... of Mathematical Analysis and Applications, vol. 331, no. 1, pp. 506–515, 2007. 5 A. Tada and W. Takahashi, “Weak and strong convergence theorems for a nonexpansive mapping and an equilibrium ... convergence theorem for finding an element of FS. On the other hand, Ceng et al. 8 proposed an iterative scheme for finding an element of EPφ ∩ FS and then obtained some weak and...

Ngày tải lên: 21/06/2014, 05:20

... Laplace transform of t his expression can be written by using a Laplace transform of the Mittag-Leffler function 4: £  t β−1 E γ,β  −zt γ    s γ−β s γ  z , 3.4 and we obtain an analytical ... the Slovak Grant Agency for Science under Grants VEGA: 1/0390/10, 1/0497/11, 1/0746/11, Grants APVV-0040-07 and SK-PL-0052-09. References 1 R. Caponetto, G. Dongola, L. Fortuna, and I. Petr...

Ngày tải lên: 21/06/2014, 05:20